It's interesting, but it doesn't give any hints as to what they will be doing (or did). The fact that they were racing yesterday says to me that it wasn't so much an audition but instead an immediate participatory event (sort of like at the Regina football stadium). I don't know much about Inuk culture, but if it was an audition, I'd have to guess some kind of coming of age ceremony given the age of the young girls and the involvement of older women. I've also seen some references to throatsinging (not sure what that means) in the local paper, but I can't see why they would restrict that to certain ages.

The local newspaper had pictures from the Omingmak Frolics a few days ago, which appeared to be snowmobile racing. It's not too hard to imagine the teams going snowmobiling. Perhaps they would have to do a lap in a specified time.